The change of Helmholtz energy of a process at standard conditions is -2,862 kJ per mole. What can be said about the work that the process can do? A. The process can do 2862 kJ per mole of NON-pV-work on the surroundings. B. The surroundings can do 2862 kJ per mole of NON pV-work on the system. C. The surroundings can do 2862 kJ per mole pV-work on the system. D. The process can do 2862 kJ per mole pV-work on the surroundings.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
The change of Helmholtz energy of a process at standard conditions is -2,862 kJ per mole. What can be said about the work that the process can do?
A. The process can do 2862 kJ per mole of NON-pV-work on the surroundings.
B. The surroundings can do 2862 kJ per mole of NON pV-work on the system.
C. The surroundings can do 2862 kJ per mole pV-work on the system.
D. The process can do 2862 kJ per mole pV-work on the surroundings.
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